The catalogue service (CAS)

• Data Structures
• Subroutines

Data Structures

The interface of the service for a user is a format of request/reply FOPs. Request FOPs:

• m0_cas_op Reply FOPs:
• m0_cas_rep

Also CAS service exports predefined FID for meta-index (m0_cas_meta_fid) and FID type for other ordinary indexes (m0_cas_index_fid_type).

Subroutines

CAS service is a request handler service and provides several callbacks to the request handler, see m0_cas_service_type::rst_ops().

Also CAS service registers several FOP types during initialisation:

• cas_get_fopt
• cas_put_fopt
• cas_del_fopt
• cas_cur_fopt
• cas_rep_fopt

See also

Detailed Functional Specification